225994989893 has 2 divisors, whose sum is σ = 225994989894. Its totient is φ = 225994989892.

The previous prime is 225994989881. The next prime is 225994989901. The reversal of 225994989893 is 398989499522.

225994989893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154341336769 + 71653653124 = 392863^2 + 267682^2 .

It is a cyclic number.

It is not a de Polignac number, because 225994989893 - 2²⁰ = 225993941317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225994985893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112997494946 + 112997494947.

It is an arithmetic number, because the mean of its divisors is an integer number (112997494947).

Almost surely, 2^225994989893 is an apocalyptic number.

It is an amenable number.

225994989893 is a deficient number, since it is larger than the sum of its proper divisors (1).

225994989893 is an equidigital number, since it uses as much as digits as its factorization.

225994989893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 906992640, while the sum is 77.

The spelling of 225994989893 in words is "two hundred twenty-five billion, nine hundred ninety-four million, nine hundred eighty-nine thousand, eight hundred ninety-three".